نتایج جستجو برای: viscoelastic biological tissues
تعداد نتایج: 647247 فیلتر نتایج به سال:
Biofidelic numerical models require accurate geometry, material properties, representative loading conditions, and proper verification and validation based on relevant experimental studies. Imaging techniques such as CT or MRI are typically used to generate anatomically correct model geometry. Accurate biological material properties and constitutive models present a challenge s...
Accurate and efficient prediction of soft tissue temperatures is essential to computer-assisted treatment systems for thermal ablation. It can be used predict ablation volumes personalised planning image-guided intervention. Numerically, it requires full nonlinear modelling the coupled computational bioheat transfer biomechanics, solution procedures; however, existing studies considered analysi...
introduction: with the rapid increase in use of lasers in medical treatments, it is important to understand the mechanisms of heat transfer in biological tissues in order to minimize damage to the tissues resulting from extra heat applied. the aim of this study is to investigate the temperature distribution in living biological tissues when laser irradiation is used in a treatment. methods: in...
Objective: High Intensity Focused Ultrasound (HIFU) has been shown capable of ablating soft tissues in vitro and in vivo. However, mainly due to the lack of knowledge of the exerted radiation force in tissue, mechanical characterization of ablated tissues, particularly at very high HIFU powers, remains largely understudied. This study aims at quantifying the canine liver tissue viscoelastic pro...
PURPOSE Repetitive Lumbar Injury (RLI) is common in individuals engaged in long term performance of repetitive occupational/sports activities with the spine. The triggering source of the disorder, tissues involved in the failure and biomechanical, neuromuscular, and biological processes active in the initiation and development of the disorder, are not known. The purpose is, therefore, to test, ...
Authors aimed to summarize experimental researches of affecting properties monolithic .22 Long Rifle bullets after their ricochet from various types obstacles. Alternative criterion for evaluating the is proposed using this it possible forecast degree and severity bodily injuries ricochet. Specifics conditions under which fragmentation small-bore occurs are revealed, as well flight speed fragme...
In this paper, the numerical design and simulate a biosensor to detect tumors and cancerous tissues by using metamaterial structures in the microwave regime are presented. The presented structure consists of a microstrip transmission line and a split ring resonator (SRR) that form a bandpass filter and has a unique resonance frequency. Given that cancerous tissues have larger volumes of water t...
The mechanical properties of the respiratory system are generally inferred from measurements of pressure and flow at the airway opening. Traditionally, these measurements have been related through a single-compartment model of the respiratory system. Recently, however, there has been considerable interest in modelling low-frequency respiratory mechanics in terms of two compartments, since this ...
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